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voting machine
(Encyclopedia) voting machine, instrument for recording and counting votes. The voting machine itself is generally positioned in a booth, often closed off by a curtain to assure secrecy for the voter…adding machine
(Encyclopedia) adding machine: see calculator.Howe, Elias
(Encyclopedia) Howe, Elias, 1819–67, American inventor, b. Spencer, Mass. He was apprenticed in 1838 to an instrument maker and watchmaker in Boston at whose suggestion he turned his attention to…mechanical advantage
(Encyclopedia) mechanical advantage: see machine.Savery, Thomas
(Encyclopedia) Savery, Thomas, c.1650–1715, English engineer. He became a military engineer, rising to the rank of captain by 1702. He spent his free time performing experiments in mechanics,…Cartwright, Edmund
(Encyclopedia) Cartwright, Edmund, 1743–1823, English inventor and clergyman. He was the inventor of an imperfect power loom that, when finally patented (1785), became the parent of the modern loom.…perpetual-motion machine
(Encyclopedia) perpetual-motion machine, device that would be able to operate continuously and supply useful work, in violation of the laws of thermodynamics. A machine that would produce more energy…grinding
(Encyclopedia) grinding, process by which surface material is removed from an object, usually metal, by the abrasive action of a rotating wheel or a moving belt that contains abrasive grains. A…Hyatt, John Wesley
(Encyclopedia) Hyatt, John Wesley, 1837–1920, American inventor, b. Starkey, N.Y. He is known especially for his development of celluloid; with his brothers, he began its manufacture in 1872. He also…combing
(Encyclopedia) combing, process that follows carding in the preparation of fibers for spinning, lays the fibers parallel, and removes noils (short fibers). The modern combing machine is a specialized…Trending
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